Heat exchanger tube



FIG. 1 is a front view of a heat exchanger tube, the opposite side beinga mirror image of the side shown herein;

FIG. 2 is a left side view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a top view thereof, the opposite side being an identical imageof the side shown herein;

FIG. 5 is an enlarged view of part 5-5 in FIG. 1 thereof;

FIG. 6 is a cross-sectional view taken along line 6-6 in FIG. 1; and,

FIG. 7 is an enlarged view of part 7-7 in FIG. 6 thereof.

In the drawings, the broken lines depict portions of the heat exchangertube that are environmental subject matter only and form no part of theclaimed design.

The broken lines on the ends of the heat exchanger tube in the drawingsindicate that any portion of the article beyond what is shown forms nopart of the claimed design.

CLAIM The ornamental design for a heat exchanger tube, as shown anddescribed.